/* ======================================================================
 * Tábua de Marés
 * - Todas as cores vêm de variáveis (tema claro/escuro abaixo).
 * - Tamanhos de texto e de caixas que contêm texto são em rem, para
 *   respeitar o tamanho de fonte do sistema (Android, navegador e, no iOS,
 *   Dynamic Type via -apple-system-body).
 * ==================================================================== */

:root {
  /* Fundo / céu */
  --sky-1: #bfe6f5;
  --sky-2: #eaf7fc;
  /* Texto */
  --ink: #0b2a3a;
  --ink-2: #44687a;
  --on-accent: #ffffff;
  /* Superfícies */
  --card: rgba(255, 255, 255, 0.72);
  --card-border: rgba(255, 255, 255, 0.85);
  --tile: rgba(127, 190, 220, 0.12);
  --tile-next: rgba(18, 165, 201, 0.18);
  /* Destaques */
  --accent: #0b7fab;
  --accent-2: #12a5c9;
  --high: #0b7fab;
  --low: #c2742a;
  /* Mar */
  --wave-1: rgba(18, 140, 190, 0.9);
  --wave-2: rgba(40, 165, 210, 0.55);
  --wave-3: rgba(90, 195, 230, 0.4);
  --water: #128cbe;
  --on-water: rgba(255, 255, 255, 0.85);
  --on-water-shadow: rgba(0, 0, 0, 0.35);
  /* Lua */
  --moon-lit-1: #fffdf2;
  --moon-lit-2: #e9dcae;
  --moon-dark: #2c3a4a;
  --moon-rim: rgba(255, 255, 255, 0.18);
  --moon-crater: rgba(0, 0, 0, 0.07);
  --moon-glow: rgba(253, 246, 220, 0.45);
  /* Sombras */
  --shadow-color: rgba(8, 60, 90, 0.12);
  --shadow-color-strong: rgba(8, 60, 90, 0.2);
  --shadow: 0 8px 30px var(--shadow-color);

  --radius: 22px;
  --sea-level: 30vh;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --sky-1: #020b14;
    --sky-2: #0a2233;
    --ink: #e4f3fa;
    --ink-2: #8fb3c4;
    --on-accent: #04131f;
    --card: rgba(10, 30, 45, 0.62);
    --card-border: rgba(140, 200, 230, 0.14);
    --tile: rgba(127, 190, 220, 0.08);
    --tile-next: rgba(95, 208, 242, 0.14);
    --accent: #5fd0f2;
    --accent-2: #8de0f7;
    --high: #5fd0f2;
    --low: #f0a65a;
    --wave-1: rgba(8, 70, 105, 0.95);
    --wave-2: rgba(14, 95, 135, 0.6);
    --wave-3: rgba(30, 120, 160, 0.4);
    --water: #08466a;
    --moon-dark: #1a2532;
    --shadow-color: rgba(0, 0, 0, 0.35);
    --shadow-color-strong: rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { font-size: 100%; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
/* iOS: usa o tamanho de texto do sistema (Dynamic Type). Só no iOS, pois no
   Safari do macOS esta fonte é bem menor (13px). */
@supports (font: -apple-system-body) and (-webkit-touch-callout: none) {
  html { font: -apple-system-body; }
}
html, body { margin: 0; min-height: 100%; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 1rem;
  color: var(--ink);
  background: linear-gradient(180deg, var(--sky-2), var(--sky-1)) fixed;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

button { font: inherit; color: inherit; }

.ico { width: 1.5rem; height: 1.5rem; flex: none; }
.ico.sm { width: 1rem; height: 1rem; vertical-align: -0.1875rem; }

/* ---------- Mar ---------- */
.sea {
  position: fixed;
  inset: auto 0 0 0;
  height: var(--sea-level);
  transition: height 1.4s cubic-bezier(.4, 0, .2, 1);
  z-index: 0;
  pointer-events: none;
}
.wave {
  position: absolute;
  left: 0;
  width: 200%;
  height: 64px;
  will-change: transform;
}
.w1 { fill: var(--wave-1); top: 4px; animation: drift 9s linear infinite; z-index: 3; }
.w2 { fill: var(--wave-2); top: -10px; animation: drift 14s linear infinite reverse; z-index: 2; }
.w3 { fill: var(--wave-3); top: -22px; animation: drift 21s linear infinite; z-index: 1; }
.water { position: absolute; inset: 62px 0 0 0; z-index: 3; background: var(--water); }

@keyframes drift {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .wave { animation: none; }
  .sea { transition: none; }
}

/* ---------- Layout ---------- */
.app {
  position: relative;
  z-index: 1;
  max-width: 35rem;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 12px) 16px calc(env(safe-area-inset-bottom) + 24px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  /* Consultas de contêiner em rem acompanham o tamanho de fonte do sistema. */
  container: app / inline-size;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}

/* Altura fixa: trocar de dia não pode fazer a tela "pular". */
.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  grid-template-rows: 11.25rem;
  gap: 12px;
}
.row > .card { overflow: hidden; }
.invisible { visibility: hidden; }

.hint {
  margin: 8px 0 0;
  font-size: 0.75rem;
  color: var(--ink-2);
  text-align: center;
  opacity: .8;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--card-border);
  background: var(--card);
  border-radius: 14px;
  cursor: pointer;
  color: var(--accent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.icon-btn.ghost { background: transparent; border-color: transparent; width: 2.5rem; height: 2.5rem; }
.icon-btn:disabled { opacity: .25; cursor: default; }
.icon-btn:active:not(:disabled) { transform: scale(.94); }

/* ---------- Topo ---------- */
.top { display: flex; gap: 10px; align-items: stretch; }
.station {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  height: 3.625rem;
  padding: 0 14px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--card-border);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--accent);
  cursor: pointer;
}
.station-text { display: flex; flex-direction: column; min-width: 0; color: var(--ink); }
.station-text strong, .station-text small { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.station-text small { color: var(--ink-2); font-size: 0.75rem; }
.station select {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  cursor: pointer;
  font-size: max(1rem, 16px); /* evita zoom automático no iOS */
}
/* Botão de localização: quadrado, mesma altura do seletor. */
.top .icon-btn { width: 3.625rem; height: 3.625rem; border-radius: 16px; flex: none; }

/* ---------- Mês ---------- */
.swipe { touch-action: pan-y; overflow: hidden; user-select: none; -webkit-user-select: none; }
.swipe-inner { padding: 12px 14px; will-change: transform; }
.swipe-inner.animating { transition: transform .22s ease, opacity .22s ease; }

.month-head, .tide-head { display: flex; align-items: center; justify-content: space-between; }
.month-head h2 { margin: 0; font-size: 1.375rem; font-weight: 700; letter-spacing: -.01em; }
.month-head h2 span { font-weight: 400; color: var(--ink-2); }

.range-bars {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 2px;
  height: 4.875rem;
  align-items: end;
  margin-top: 6px;
  padding-top: 1rem;
}
.range-bars button {
  position: relative;
  height: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}
.range-bars .bar {
  width: 100%;
  max-width: 10px;
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  opacity: .45;
  transition: opacity .2s, transform .2s;
}
.range-bars .today .bar { opacity: .8; }
.range-bars .sel .bar { opacity: 1; box-shadow: 0 0 0 2px var(--card), 0 0 0 3.5px var(--accent); }
.range-bars .mini-moon { position: absolute; top: -1rem; width: 0.75rem; height: 0.75rem; }
.range-bars .mini-moon svg { width: 100%; height: 100%; display: block; }
.range-bars .num { font-size: 0.5625rem; color: var(--ink-2); margin-top: 3px; line-height: 1; height: 0.5625rem; flex: none; }
.range-bars .sel .num { color: var(--accent); font-weight: 700; }

/* ---------- Data ---------- */
.date-card { position: relative; min-width: 0; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.date-btn {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border: 0;
  background: none;
  padding: 4px;
  cursor: pointer;
  text-align: left;
  color: var(--accent);
  flex: 1;
}
.date-btn > span { display: flex; flex-direction: column; color: var(--ink); }
.date-btn small { font-size: 0.8125rem; color: var(--ink-2); }
.date-btn .wd { display: flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; white-space: nowrap; }
#date-weekday { display: inline-block; color: var(--ink-2); }
#date-weekday::first-letter { text-transform: uppercase; }
.date-btn strong { font-size: 2.75rem; line-height: 1; font-weight: 800; letter-spacing: -.03em; margin: 2px 0; }
.date-card input[type="date"] {
  position: absolute;
  left: 0; top: 0;
  width: 100%;
  height: calc(100% - 2.5rem);
  opacity: 0;
  pointer-events: none;
  border: 0;
}
.today-btn {
  align-self: flex-start;
  display: inline-flex;
  gap: 4px;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 600;
  border: 0;
  border-radius: 999px;
  padding: 0.375rem 0.625rem;
  background: var(--accent);
  color: var(--on-accent);
  cursor: pointer;
}

/* ---------- Lua ---------- */
.moon-card { padding: 12px; display: flex; align-items: center; gap: 10px; min-width: 0; }
.moon { width: 4rem; height: 4rem; flex: none; filter: drop-shadow(0 0 12px var(--moon-glow)); }
.moon svg { width: 100%; height: 100%; display: block; }
.moon-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.moon-info strong { font-size: 0.9375rem; line-height: 1.2; }
.moon-pct { font-size: 0.8125rem; color: var(--ink-2); }
.moon-pct b { font-size: 1.375rem; color: var(--ink); font-weight: 800; }
.moon-info small { font-size: 0.75rem; color: var(--ink-2); }

/* Cores do desenho da lua (SVG gerado em app.js) */
.moon-shade { fill: var(--moon-dark); }
.moon-rim { fill: none; stroke: var(--moon-rim); stroke-width: 1; }
.moon-craters { fill: var(--moon-crater); }
.moon-stop-1 { stop-color: var(--moon-lit-1); }
.moon-stop-2 { stop-color: var(--moon-lit-2); }

/* ---------- Tábua ---------- */
.tide-status { text-align: center; font-size: 0.875rem; color: var(--ink-2); display: flex; flex-direction: column; align-items: center; }
.tide-status b { font-size: 1.625rem; color: var(--ink); font-weight: 800; letter-spacing: -.02em; }
.tide-status .trend { display: inline-flex; align-items: center; gap: 4px; font-weight: 600; }
.tide-status .trend.up { color: var(--high); }
.tide-status .trend.down { color: var(--low); }

/* O gráfico é um SVG que escala com a largura; textos internos em unidades do viewBox. */
.chart { width: 100%; height: auto; display: block; margin: 6px 0 4px; overflow: visible; cursor: crosshair; }
.chart .grid { stroke: var(--ink-2); stroke-opacity: .18; stroke-width: 1; }
.chart .axis { fill: var(--ink-2); font-size: 10px; }
.chart .curve { fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linejoin: round; }
.chart .area-top { stop-color: var(--accent-2); stop-opacity: .45; }
.chart .area-bot { stop-color: var(--accent-2); stop-opacity: 0; }
.chart .pt-high { fill: var(--high); }
.chart .pt-low { fill: var(--low); }
.chart .pt-label { font-size: 10.5px; font-weight: 700; fill: var(--ink); }
.chart .now-line { stroke: var(--ink); stroke-width: 1.2; stroke-dasharray: 3 3; opacity: .55; }
.chart .now-dot { fill: var(--card); stroke: var(--ink); stroke-width: 2.5; }
.chart .probe-line { stroke: var(--low); stroke-width: 1.5; }
.chart .probe-dot { fill: var(--low); stroke: var(--card); stroke-width: 2.5; }
.chart .probe-tip rect { fill: var(--ink); }
.chart .probe-tip text { fill: var(--sky-2); font-size: 11px; font-weight: 700; font-variant-numeric: tabular-nums; }
.chart .mean { stroke: var(--ink-2); stroke-dasharray: 2 4; stroke-opacity: .5; }

.tide-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 8px;
}
.tide-list li {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border-radius: 16px;
  border-left: 4px solid var(--high);
  background: var(--tile);
  transition: background .3s;
  min-width: 0;
}
.tide-list li.low { border-left-color: var(--low); }
.tide-list li.past { opacity: .55; }
.tide-list li.next { background: var(--tile-next); box-shadow: inset 0 0 0 1.5px var(--accent); }
.tide-list li.empty { grid-column: 1 / -1; display: block; border: 0; }
.tide-list .row1 { display: flex; align-items: baseline; justify-content: space-between; gap: 6px; }
.tide-list .time {
  font-size: 1.375rem;
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.tide-list .height { font-size: 0.875rem; font-weight: 700; color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.tide-list .what { display: flex; align-items: center; gap: 4px; font-size: 0.75rem; font-weight: 600; white-space: nowrap; }
.tide-list .what .ico { width: 1rem; height: 1rem; }
.tide-list .high .what { color: var(--high); }
.tide-list .low .what { color: var(--low); }
/* Selo "Próxima" sobre a borda superior: não altera a altura do cartão. */
.tide-list .tag {
  position: absolute;
  top: -0.5625rem;
  right: 10px;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 0.875rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  white-space: nowrap;
  box-shadow: 0 2px 6px var(--shadow-color-strong);
}

.empty { text-align: center; padding: 30px 10px; color: var(--ink-2); }
.empty .ico { width: 2.5rem; height: 2.5rem; color: var(--accent); }

.foot {
  text-align: center;
  font-size: 0.6875rem;
  color: var(--on-water);
  text-shadow: 0 1px 2px var(--on-water-shadow);
  padding: 4px 8px 0;
}
.foot p { margin: 2px 0; }

/* ---------- Adaptação à largura útil (em rem: considera o tamanho da fonte) ---------- */
@container app (max-width: 24.25rem) {
  .moon { width: 3.375rem; height: 3.375rem; }
  .moon-card { gap: 8px; padding: 12px 10px; }
  .moon-info { gap: 1px; }
}
/* Pouco espaço (tela estreita ou fonte grande): data e lua empilhadas. */
@container app (max-width: 20.5rem) {
  .row { grid-template-columns: 1fr; grid-template-rows: 10.75rem 8.5rem; }
  .moon { width: 4rem; height: 4rem; }
}
/* Fonte muito grande: lista de marés numa coluna. */
@container app (max-width: 16rem) {
  .tide-list { grid-template-columns: 1fr; }
}

@media (min-width: 700px) {
  .app { padding-top: 32px; }
}